04-07-2022, 10:55 AM
I use a product called "Naval Jelly." It is very acidic and does a great job. It is pink and very thick. Sorry, I don't know if you can find an equivalent product in Spain. Here is a link to it on Amazon:
[url=https://www.amazon.com/Henkel-1381191-Naval-Dissolver-Ounces/dp/B000C014ZI/ref=asc_df_B000C014ZI/?tag=hyprod-20&linkCode=df0&hvadid=167129443640&hvpos=&hvnetw=g&hvrand=891190712158843286&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9030128&hvtargid=pla-309470202658&psc=1]https://www.amazon.com/Henkel-1381191-Na...2658&psc=1
[url=https://www.amazon.com/Henkel-1381191-Naval-Dissolver-Ounces/dp/B000C014ZI/ref=asc_df_B000C014ZI/?tag=hyprod-20&linkCode=df0&hvadid=167129443640&hvpos=&hvnetw=g&hvrand=891190712158843286&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9030128&hvtargid=pla-309470202658&psc=1]https://www.amazon.com/Henkel-1381191-Na...2658&psc=1
